use d3d11va for qsv accel on windows (#1408)

CHANGELOG.md

@@ -32,6 +32,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Use different control for editing schedule item duration, and allow 24-hour duration
   - This is needed if you want a default/fallback alternate schedule to fill the entire day with one schedule item
   - The schedule item should have a fixed start time of midnight (00:00) and a duration of 24 hours
+- Use Direct3D 11 for QSV acceleration on Windows
 
 ## [0.8.1-beta] - 2023-08-07
 ### Added

ErsatzTV.FFmpeg/Option/HardwareAcceleration/QsvHardwareAccelerationOption.cs

@@ -20,7 +20,7 @@ public class QsvHardwareAccelerationOption : GlobalOption
         get
         {
             string[] initDevices = OperatingSystem.IsWindows()
-                ? new[] { "-init_hw_device", "qsv=hw:hw,child_device_type=dxva2", "-filter_hw_device", "hw" }
+                ? new[] { "-init_hw_device", "d3d11va=hw:,vendor=0x8086", "-filter_hw_device", "hw" }
                 : new[] { "-init_hw_device", "qsv=hw", "-filter_hw_device", "hw" };
 
             var result = new List<string>